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<h1 class="topictitle1">恢复ClickHouse数据库/表集</h1>
<div><p>当需要对已备份的ClickHouse数据库/表集进行恢复时，可以参考本节恢复ClickHouse数据库/表集至原位置或新位置。</p>
<div class="section"><h4 class="sectiontitle">前提条件</h4><ul><li>ClickHouse数据库/表集副本恢复到新集群时，只支持向同构新集群的恢复。</li><li>恢复至原位置或新位置时，请确保恢复目标位置剩余空间应大于恢复副本缩减前大小，否则会恢复失败。</li></ul>
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<div class="section"><h4 class="sectiontitle">操作步骤</h4><ol><li><span>选择<span class="uicontrol" id="clickhouse-0042__zh-cn_topic_0000001839142377_uicontrol164769252279">“<span id="clickhouse-0042__zh-cn_topic_0000001839142377_text1947682515279">数据利用</span> &gt; <span id="clickhouse-0042__zh-cn_topic_0000001839142377_text17476122515275">副本数据</span> &gt; <span id="clickhouse-0042__zh-cn_topic_0000001839142377_text16945959017">大数据</span> &gt; <span id="clickhouse-0042__zh-cn_topic_0000001839142377_text3314918173412">ClickHouse</span>”</span>。</span></li><li><span>您可以以ClickHouse资源维度或以副本维度查找副本，本节以资源维度为例进行说明。</span><p><p>在<span class="uicontrol">“<span>资源</span>”</span>页签，根据资源名称查找到需要恢复的数据库/表集，并单击资源名称。</p>
</p></li><li><span>依次选择年、月、天找到副本。</span><p><p>当时间上显示<span><img src="zh-cn_image_0000001792543212.png"></span>，即表示该月、该天存在副本。</p>
</p></li><li><span>指定副本进行恢复。</span><p><ol type="a"><li>普通恢复<ol class="substepthirdol"><li>单击需要恢复的副本所在行的<span class="menucascade">“<span class="uicontrol"><span>更多</span></span> &gt; <span class="uicontrol"> <span>恢复</span></span>”</span>。</li><li>恢复ClickHouse数据库/表集至原位置或新位置。<div class="p">相关参数说明如<a href="#clickhouse-0042__table13681910173115">表1</a>。
<div class="tablenoborder"><a name="clickhouse-0042__table13681910173115"></a><a name="table13681910173115"></a><table cellpadding="4" cellspacing="0" summary="" id="clickhouse-0042__table13681910173115" frame="border" border="1" rules="all"><caption><b>表1 </b>恢复ClickHouse数据库或表集</caption><colgroup><col style="width:32.019999999999996%"><col style="width:67.97999999999999%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="32.019999999999996%" id="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.1"><p>参数</p>
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<th align="left" class="cellrowborder" valign="top" width="67.97999999999999%" id="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.2"><p>说明</p>
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<tbody><tr><td class="cellrowborder" valign="top" width="32.019999999999996%" headers="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.1 "><p><span>恢复至</span></p>
</td>
<td class="cellrowborder" valign="top" width="67.97999999999999%" headers="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.2 "><p>选择恢复至<span class="uicontrol">“<span>原位置</span>”</span>或<span class="uicontrol">“<span>新位置</span>”</span>。</p>
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<tr><td class="cellrowborder" valign="top" width="32.019999999999996%" headers="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.1 "><p><span>位置</span></p>
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<td class="cellrowborder" valign="top" width="67.97999999999999%" headers="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.2 "><p>当选择恢复至<span class="uicontrol">“<span>原位置</span>”</span>时，显示原位置。</p>
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<tr><td class="cellrowborder" valign="top" width="32.019999999999996%" headers="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.1 "><p><span>目标集群</span></p>
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<td class="cellrowborder" valign="top" width="67.97999999999999%" headers="mcps1.3.3.2.4.2.1.1.1.2.1.2.2.3.1.2 "><p>当选择恢复至<span class="uicontrol">“<span>新位置</span>”</span>时，选择需要恢复的目标集群。</p>
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</li><li>单击<span class="uicontrol">“<span>确定</span>”</span>。</li><li>系统弹出如下提示，确认提示内容后，单击<span class="uicontrol">“确定”</span>。<p><span><img src="zh-cn_image_0000001839182589.png"></span></p>
<p></p>
</li></ol>
</li><li>表级恢复。<ol class="substepthirdol"><li>单击需要进行表级恢复的副本所在行的<span class="menucascade">“<span class="uicontrol"><span>更多</span></span> &gt; <span class="uicontrol"> <span>表级恢复</span></span>”</span>。</li><li>勾选需要恢复的表。</li><li>选择需要恢复的目标集群。相关参数说明如<a href="#clickhouse-0042__table13681910173115">表1</a>。</li><li>单击<span class="uicontrol">“<span>确定</span>”</span>。</li><li>系统弹出如下提示，确认提示内容后，单击<span class="uicontrol">“确定”</span>。<p><span><img src="zh-cn_image_0000001792383484.png"></span></p>
</li></ol>
</li></ol>
</p></li></ol>
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